Hollow screw



FIG. 1 is a perspective view showing the front, top and left sides ofthe hollow screw;

FIG. 2 is a front elevation view of the hollow screw;

FIG. 3 is a rear elevation view of the hollow screw;

FIG. 4 is a right side elevation view of the hollow screw;

FIG. 5 is a left side elevation view of the hollow screw;

FIG. 6 is a top plan view of the hollow screw; and,

FIG. 7 is a bottom plan view of the hollow screw.

The broken lines in the drawings illustrate portions of the hollow screwand form no part of the claimed design.

The depth of the internal bottom surface of the hollow shaft forms nopart of the claimed design.

CLAIM The ornamental design for a hollow screw, as shown and described.